Improvement in windmills



UNITED STATES 'PATENT OFFICE.

WILLIAM E. MANN, OE oOLUMBUs, OHIO.

IMPROVEMENT IN WINDMILLS.

xspecificatlion forming part of Letters Patent No. 172385 dated February 1, 1876; application filed December 21,1875.

To all whom it may' concern Be it known that I, WILLIAM F. MANN, of Columbus, in the countyY of Franklin and State of Ohio, have invented certain new and useful Improvements in Windmills; and I do 4hereby declare the following to be a full, clear,

and exact description ot the invention, such as lwill enable others skilled in the art to which l automatically regulating the speed of the mill.

In the drawings, Figure l represents a side elevation of the mill complete, with its face to the wind in a moderate wind; Fig. 2, a front view oi' same in position in a strong wind, the

` edge of the wheel being to the wind; Fig. 3,

an edge view of same; Fig. 4, a vertical-central section through the cylinder.

A is the wind-wheel, of the usual or any appropriate construction, mounted in a suitable frame, B, the lower end of which frame is formed into a cylinder, B', and revolves in a hollow or cylindrical bearing-support, C. D is the tail-vane, mounted by axis D in top of frame B. E is the regulatoror governor vane, secured by post E to the top of tail-vane D and above wheel A. F is another regulator or governor, secured at the top oi' regulatorvane E and at right, angles thereto. a is the crank, and b the pitman for communicating movement from the mill. e is an arm on tailvane D, with cord e for operating the millgovernor by hand.

The operation of the parts is as follows: In a moderate wind the parts stand in the position as shown in Fig. l, with the face of the wheel, the edge of the tail, the face of the regulator E, and edge of regulator F to the wind.

Should the force of the wind increase, it, ,y

coming against .the regulator E, causes it to be driven down and, at the same time, around, carrying with it the wheel A, in the position shown in Fig. 2, and presenting the edge or an oblique face to the wind. As the wheel is brought around in this position the face ot regulator F is brought to the wind,

which oii'ers an obstruction to it, and keeps the parts in position, as shown in Fig. 3, as long as vthe wind stays at such force. As the wind relaxes, the weight of tail-vane D brings the parts back to their normal position.

Thus, it will be observed', a simple and ei'- fective arrangement of parts is secured and an automatic regulation of windmills effected. Having thus described my invention, what I claim as new, and desire to secure by Iletters Patent, is-

1. In a windmill, the combination, with the supporting-frame B, secured to a loose sleeve, of the independently-journaled axles B and D of the wheel and vane, and the crank a, lo-

WM. F. MANN.

Witnesses:

N. B. WHARTON,- WM. CHAMBERS. 

